Summary

Name CENPA
Full Name Histone H3-like centromeric protein A
Synonyms Centromere autoantigen A, Centromere protein A, CENP-A
Primary ID P49450
Links - -
Type protein
Relations 5
Function Histone H3-like nucleosomal protein that is specifically found in centromeric nucleosomes (PubMed:7962047, PubMed:9024683, PubMed:11756469, PubMed:14667408, PubMed:15702419, PubMed:15475964, PubMed:15282608, PubMed:17651496, PubMed:19114591, PubMed:27499292, PubMed:20739937). Replaces conventional H3 in the nucleosome core of centromeric chromatin at the inner plate of the kinetochore (PubMed:18072184). The presence of CENPA subtly modifies the nucleosome structure and the way DNA is wrapped around the nucleosome and gives rise to protruding DNA ends that are less well-ordered and rigid compared to nucleosomes containing histone H3 (PubMed:27499292, PubMed:26878239). May serve as an epigenetic mark that propagates centromere identity through replication and cell division (PubMed:15475964, PubMed:15282608, PubMed:26878239, PubMed:20739937, PubMed:21478274). Required for recruitment and assembly of kinetochore proteins, and as a consequence required for progress through mitosis, chromosome segregation and cytokinesis (PubMed:11756469, PubMed:14667408, PubMed:18072184, PubMed:23818633, PubMed:25556658, PubMed:27499292).

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Modifications Tables

Relations

Regulator Mechanism target score
+ down-regulates quantity by destabilization img/direct_inhibition.png phosphorylation CENPA 0.667
Publications: 1 Organism: Homo Sapiens
+ img/unknown.png phosphorylation CENPA 0.815
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png binding CENPA 0.547
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png binding CENPA 0.958
Publications: 1 Organism: Homo Sapiens
+ form complex img/form-complex.png binding CENP-A nucleosome 0.2
Publications: 1 Organism: In Vitro